620  
SXUS83 KAPX 250838  
OMRAPX  
 
MARINE OBSERVATIONS  
NATIONAL WEATHER SERVICE GAYLORD MI  
438 AM EDT FRI JUL 25 2025  
 
WIND DATA (KTS) WAVES WATER  
SITE DATE/TIME DIR SPEED GUST (FT) TEMP(F) SITE NAME  
-------------------------------------------------------------  
 
LAKE SUPERIOR/ST MARYS RIVER  
 
GRMM4 250750Z 200 1 3 GRAND MARAIS  
WFPM4 250740Z 290 5 6 WHITEFISH POINT  
PTIM4 250754Z 300 4 5 POINT IROQUOIS  
CYAM 250800Z 300 5 SOO (CANADA)  
KANJ 250755Z CALM SAULT STE MARIE  
SWPM4 250754Z 290 6 7 66.37 S.W. PIER  
LTRM4 250754Z 260 1 2 60.07 LITTLE RAPIDS  
RCKM4 250754Z 290 4 67.28 ROCK CUT  
WNEM4 250754Z 320 3 5 60.61 WEST NEBISH ISLAND  
 
LAKE HURON  
 
DTLM4 250754Z 330 5 10 64.57 DETOUR VILLAGE  
KDRM 250815Z CALM DRUMMOND ISLAND  
KMCD 250815Z 310 7 MACKINAC ISLAND  
MACM4 250754Z 280 4 6 68.54 MACKINAC CITY  
KSLH 250815Z 280 3 CHEBOYGAN AIRPORT  
CYGM4 250820Z 290 8 11 CHEBOYGAN MARINA  
SRLM4 250700Z 300 13 SPECTACLE REEF LIGHT  
KPZQ 250815Z 280 3 ROGERS CITY  
PRIM4 250750Z 300 8 15 PRESQUE ISLE LIGHT  
KAPN 250754Z 300 3 ALPENA GUARD BASE  
APNM4 250820Z 310 7 9 ALPENA HARBOR LIGHT  
TBIM4 250800Z 310 4 9 THUNDER BAY ISLAND  
SPTM4 250750Z 340 2 8 STURGEON POINT LIGHT  
KOSC 250815Z 350 6 OSCODA  
GSLM4 250740Z 290 3 5 GRAVELLY SHOALS  
 
LAKE MICHIGAN  
 
KISQ 250815Z CALM MANISTIQUE  
PNLM4 250754Z 20 1 2 66.19 PORT INLAND  
NABM4 250740Z 310 3 5 NAUBINWAY  
KSJX 250815Z 70 1 ST JAMES  
KPLN 250754Z 280 3 PELLSTON  
KMGN 250815Z CALM HARBOR SPRINGS  
NMIM4 250728Z CALM 4 NORTH MANITOU ISLAND  
GTLM4 250740Z 80 1 2 GRAND TRAVERSE LIGHT  
KTVC 250753Z 360 3 TRAVERSE CITY  
KFKS 250815Z CALM FRANKFORT  
MEEM4 250740Z 20 6 MANISTEE HARBOR  
BSBM4 250740Z 40 5 8 BIG SABLE POINT  
LDTM4 250754Z 90 2 4 LUDINGTON  
KLDM 250815Z 30 2 LUDINGTON AIRPORT  
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